What two protocols could we use to create Layer $2$ trunks? $($Choose $2)$

Question $12$Select one or more:

a$.$

ISL

b$.$

$802\mathrm{.}1$Q

c$.$

LLDP

d$.$

$802\mathrm{.}1$D

e$.$

$802\mathrm{.}1$X